mirror of
https://github.com/MetaCubeX/mihomo.git
synced 2024-10-30 00:48:15 +00:00
23 lines
441 B
Go
23 lines
441 B
Go
|
package shadowstream
|
||
|
|
|
||
|
|
import (
|
||
|
|
"crypto/cipher"
|
||
|
|
"github.com/aead/chacha20/chacha"
|
||
|
|
)
|
||
|
|
|
||
|
|
type chacha20key []byte
|
||
|
|
|
||
|
|
func (k chacha20key) IVSize() int {
|
||
|
|
return chacha.NonceSize
|
||
|
|
}
|
||
|
|
func (k chacha20key) Encrypter(iv []byte) cipher.Stream {
|
||
|
|
c, _ := chacha.NewCipher(iv, k, 20)
|
||
|
|
return c
|
||
|
|
}
|
||
|
|
func (k chacha20key) Decrypter(iv []byte) cipher.Stream {
|
||
|
|
return k.Encrypter(iv)
|
||
|
|
}
|
||
|
|
func ChaCha20(key []byte) (Cipher, error) {
|
||
|
|
return chacha20key(key), nil
|
||
|
|
}
|